VACON CX
Profibus user’s manual
Page
3
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Vacon Oyj
Phone +358-201-2121
Fax: +358-201-212 205
1. GENERAL
Vacon frequency converters can be connected to the Profibus DP by using a Fieldbus board. The
converter can then be controlled, monitored and programmed from the Host system.
The used I/O can also be extended with the Fieldbus board:
•
4 digital inputs (standard signals)
•
4 digital outputs (2 standard signal)
•
1 relay output (standard signal)
•
Thermistor input (can be directly connected to the motor thermistors for overtemperature trip)
•
Encoder input
The Profibus fieldbus board can be installed inside the frequency converter as instructed in this manual.
Note that the installation procedure is different for CX/CXL (board CX202OPT) and CXS frequency
converters (CX210OPT).
The control connections are isolated from the mains potential and the I/O ground is connected to the
frame of the device via a 1 M
Ω
resistor and 4.7 nF capacitor*. The control I/O ground can also be
connected directly to the frame by changing the position of the jumper X9 (GND ON/OFF) to ON-
position. Digital inputs are also isolated from the I/O ground.
NOTE !
Internal components and circuit boards (except for the isolated I/O terminals) are at mains
potential when the frequency converter is connected to the mains. This voltage is extremely
dangerous and may cause death or severe injury if you come into contact with it.
The control I/O terminals are isolated from the mains potential, but the I/O:s (if jumper X9 is in
OFF-position) may have dangerous voltage connected even if the power is off on the
frequency converter.
* Default value = X9 is GND OFF- position)
